diff --git a/tests/pillar/system.sls b/tests/pillar/system.sls
index 2e3e80d..9831d9f 100644
--- a/tests/pillar/system.sls
+++ b/tests/pillar/system.sls
@@ -75,5 +75,5 @@
       en_US.UTF-8:
         enabled: true
         default: true
-      cs_CZ.UTF-8:
+      "cs_CZ.UTF-8 UTF-8":
         enabled: true